Block Diagram; System Module Block Diagram; Functional Description; Baseband Description - Nokia RH-99 Service Manual

RH-99; RH-100; RH-105; RH-106
System module

Block diagram

System module block diagram

The main functionality of the BB4.1 is concentrated on two ASICs, the digital/RF ASIC is called the UPPCosto
and the mixed signal ASIC, the LITTI. The program code is stored in the external FLASH memory. The simplified
BB4.1 block diagram is presented below.

Functional description

The UPPCosto ASIC is designed to work in DCT4 cellular phone engines developed only for GSM. It is based on
UPP2M_v2, but with integrated Digital Radio Processor (DRP2).

Baseband description

UPPCosto

UPPCosto includes 2MBit internal RAM, ARM7 Thumb 16/32-bit RISC MCU core, LEAD3 16-bit DSP core, ROM for
MCU boot code and all digital control logic. UPPCosto also contains the major part of the RF system.
Issue 2
Figure 77 Module block diagram
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